US9573335B2 - Quick coupling system for fastening an interchangeable head on a press tool - Google Patents
Quick coupling system for fastening an interchangeable head on a press tool Download PDFInfo
- Publication number
- US9573335B2 US9573335B2 US14/343,705 US201214343705A US9573335B2 US 9573335 B2 US9573335 B2 US 9573335B2 US 201214343705 A US201214343705 A US 201214343705A US 9573335 B2 US9573335 B2 US 9573335B2
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- United States
- Prior art keywords
- press
- exchangeable head
- press tool
- securing
- exchangeable
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
- B30B15/026—Mounting of dies, platens or press rams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
- B23B31/1071—Retention by balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
- B23B2231/026—Grooves
- B23B2231/0268—Radial grooves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17666—Radially reciprocating jaws
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17666—Radially reciprocating jaws
- Y10T279/17692—Moving-cam actuator
- Y10T279/17743—Reciprocating cam sleeve
- Y10T279/17752—Ball or roller jaws
Definitions
- the invention relates to a quick coupling system for fastening an interchangeable head on a press tool according to Patent claim 1 .
- Press devices are used for various purposes, including pressing cable connectors onto electric cables for example.
- the press device to be used for the pressing of the cable connectors must also be equipped or be able to be equipped with a press head which is suitable for the various sizes of cable connector to be used.
- exchangeable press heads are used, then these are simply designated in a simplified manner as exchangeable heads in the following.
- an exchangeable-head system one can also easily convert to other tool or adapter systems, such as for example to cable-cutting or stamping tools.
- the longitudinal forces that is to say the pressing forces generated by the press devices, to be transmitted are however a particular problem with press devices with exchangeable heads, because the coupling mechanism, using which the exchangeable head is fastened on the press device, must of course withstand these forces and the corresponding safety requirements are relatively high.
- the problem of fastening the exchangeable heads on press devices is therefore solved with screw connections. Screw connections have the advantage, in particular if many threads are engaged, that the very high longitudinal forces can be caught securely and that in many cases, the risk of an unintentional loosening in the pressure-loaded state is virtually non-existent. Namely, it appears extremely unlikely that the screw connection used loosens by several threads at once due to vibrations without it being noticed. For reasons of safety technology, the screw connection is currently therefore the customary technical solution for fastening exchangeable heads on press devices.
- the solution originates from the consideration that the presence of a thread is not necessarily the only possibility for producing the connection between the press tool and exchangeable head, in order to ensure a satisfactorily high connection security.
- Other systems which for example use a bayonet closure or a securing-means arrangement with radially displaceable securing means, can offer the same degree of connection security.
- this is very dependent in the individual case on how the securing-means arrangement is configured and dimensioned, particularly in the case of the last-mentioned solution variant.
- the main advantage however consists in the fact that dispensing with a thread for producing the connection between the press tool and exchangeable head essentially allows the realisation of a real quick coupling system for the first time.
- the present invention is concerned with solutions in which radially displaceable securing means are used. Therefore, the securing measures to be provided for this case are also assigned a high importance.
- the multiplication of the radially displaceable securing means which are present to increase the operational safety preferably includes the securing means being present at least twice and being arranged axially one behind the other.
- the term securing means it is to be understood to mean that it can for example comprise an individual radially displaceable ball element in each case or else also a group (distributed over a circumference) of radially displaceable ball elements.
- the exemplary embodiments described below are concerned with solutions in which two groups of radially displaceable ball elements are present in each case, which are arranged axially one behind the other and each distributed over a circumference. The forces to be captured are therefore distributed to at least two securing means or always to a multiplicity of ball elements.
- Both exemplary embodiments are of such a type that no mechanically secure coupling or latching at all can be produced between the press tool and the exchangeable head in a non-operationally-safe assembly position.
- pressing pressure build-up additionally takes place only relatively slowly by means of a press piston in press tools of this type, the exchangeable head itself would simply be pressed out of the holding part on the press device if inadvertently commissioned, and there is no danger whatsoever for the operating personnel.
- the exchangeable head of a quick coupling system of this type can therefore be shaped particularly simply in terms of design. Namely, it only requires two retaining grooves arranged axially one behind the other on the shank part of the exchangeable head, which can be inserted into a holding part of the press tool, which at the same time has the advantage of being simple to produce.
- the retaining grooves can advantageously extend over the entire circumference, if appropriate however also only over parts of the circumference of the shank part. They can, if required, of course also be realised simply as fittingly arranged individual recesses.
- Quick coupling systems of this type can of course be used not just on electrically, pneumatically, mechanically or hydraulically operated press devices; they are just as suitable for manually operated press devices or for press devices with flexible connections to the movable press piston.
- Bayonet closure systems include a latching device which can be actuated by means of rotation.
- securing-means arrangement is to be understood broadly in this context. Irrespective of whether an exchangeable head is fastened on a press tool by means of a thread, a bayonet closure or with the aid of radially displaceable securing means, they are to be understood to mean those means which should ensure secure fastening. In the case of screw connections and to a large extent also in the case of bayonet closures, this takes place in the main by means of the type of connection per se. In solutions with radially displaceable securing means, further components are of course added, such as for example the latch 2 and the spring 9 .
- FIG. 1 shows a first exemplary embodiment of a quick coupling system according to the invention with inserted exchangeable head
- FIG. 2 shows a second exemplary embodiment of a quick coupling system according to the invention with inserted exchangeable head
- FIG. 3 shows an indication device in the case of an exchangeable head which is not completely inserted and not locked
- FIG. 4 shows the indication device of FIG. 3 with a completely inserted and locked exchangeable head.
- FIG. 1 shows a first exemplary embodiment of a quick coupling system according to the invention with inserted exchangeable head on the basis of a sectional drawing.
- a shank part 13 of an exchangeable head 1 is inserted completely into a securing-means holding part 3 on a press tool 4 and latched therein.
- a latch 2 which is axially displaceable on the securing-means holding part 3 and is pushed forwards (that is to say away from the press tool) by a spring (not illustrated), is used for latching.
- a securing-means arrangement includes securing means S 1 , S 2 in the form of ball elements which are arranged in a radially displaceable manner in ball channels 5 , 6 in the securing-means holding part 3 .
- the securing means S 1 , S 2 are here constructed as two groups of radially displaceable ball elements (in each case distributed over a circumference).
- the two groups use ball elements of different diameter.
- the securing-means holding part 3 has stepped internal radii, namely an (outer) region with a larger internal radius in the region of the ball channels 5 , and an (inner) region with a smaller internal radius in the region of the ball channels 6 .
- the securing means S 1 , S 2 are pressed into corresponding retaining grooves 14 , 15 in the shank part 13 of the exchangeable head 1 and thus effect the secure and reliable latching or locking of the exchangeable head. Incorrect assembly is not possible owing to the different sizes of the ball elements, as an attempt to assemble in a position in which only the securing means S 1 are in engagement does not result in a secure connection between the press tool and exchangeable head.
- the securing means S 1 , S 2 can switch to the retaining grooves 7 , 8 and the exchangeable head 1 can be pulled out of the securing-means holding part 3 .
- a hydraulically, pneumatically, mechanically or electrically actuated press piston 10 of the press device 4 acts with a press force P on a spring mounted push rod 12 in the interior of the exchangeable head 1 .
- the push rod is used for actuating a press apparatus in the exchangeable head.
- FIG. 2 schematically shows a second exemplary embodiment of a quick coupling system according to the invention with inserted exchangeable head on the basis of a sectional drawing.
- a shank part 13 of an exchangeable head 1 is inserted completely into a securing-means holding part 3 on a press tool 4 and latched therein.
- a latch 2 which is axially displaceable on the securing-means holding part 3 and is pushed forwards (that is to say away from the press tool) by a spring 9 , is used for latching.
- a securing-means arrangement includes securing means S 1 , S 2 in the form of ball elements which are arranged in a radially displaceable manner in ball channels 5 , 6 in the securing-means holding part 3 .
- the securing means S 1 , S 2 are here also constructed as two groups of radially displaceable ball elements (in each case distributed over a circumference).
- the two groups use ball elements of the same diameter in this case, however.
- the securing-means holding part 3 does not have any stepped internal radii here, however, but rather a constant internal radius in the entire holding region.
- the securing means S 1 , S 2 are pressed into corresponding retaining grooves 14 , 15 in the shank part 13 of the exchangeable head 1 and thus effect the secure and reliable latching or locking of the exchangeable head.
- Incorrect assembly is not possible in spite of their same size of the ball elements and in spite of the same internal radius of the securing-means holding part, as an attempt to assemble in a position in which only the securing means S 1 are in engagement does not result in a secure connection between the press tool and exchangeable head, because the latch 2 in this position cannot be pushed into the latching position illustrated at all.
- the part of the shank part 13 projecting into the securing-means holding part 3 is namely dimensioned or elongated in such a manner that the securing means S 2 do not switch and thus also cannot release the latch for displacement.
- the securing means S 1 , S 2 can switch to the retaining grooves 7 , 8 and the exchangeable head 1 can be pulled out of the securing-means holding part 3 .
- a hydraulically, pneumatically, mechanically or electrically actuated press piston (not illustrated) of the press device 4 acts with a press force P on a spring mounted push rod (not illustrated) in the interior of the exchangeable head 1 , which for its part is used for actuating a press apparatus in the exchangeable head.
- Both exemplary embodiments therefore show solutions in which the securing-means arrangement has radially displaceable securing means S 1 , S 2 , wherein the securing means S 1 , S 2 for increasing the securing effect are present at least twice and arranged axially behind one another, specifically so that the securing-means arrangement makes a mechanically secure coupling between the press tool 4 and the exchangeable head 1 impossible in a non-operationally-safe position.
- the securing-means arrangement has radially displaceable securing means S 1 , S 2 , wherein the securing means S 1 , S 2 for increasing the securing effect are present at least twice and arranged axially behind one another, specifically so that the securing-means arrangement makes a mechanically secure coupling between the press tool 4 and the exchangeable head 1 impossible in a non-operationally-safe position.
- securing-means arrangements with radially displaceable securing means are possible.
- the securing means are not spherical, but rather shaped in a bolt- or cam-like manner, and it is also possible that the securing means are present more than twice.
- FIGS. 3 and 4 finally show another realisation option for visually indicating correct and safe assembly of the device, that is to say of the press tool 4 and exchangeable head 1 .
- FIG. 3 shows an indication device of this type in the case of an exchangeable head which is not completely inserted and not locked.
- the quick coupling system illustrated here in principle corresponds to that according to FIG. 1 .
- the shank part 13 of the exchangeable head 1 has a clearly defined and clearly visible marking shoulder 16 .
- the marking shoulder 16 is located clearly outside of the securing-means holding part 3 and the latch 2 , specifically even if the latter is pushed forwards to the maximum.
- FIG. 4 shows the indication device of FIG. 3 with a completely inserted and locked exchangeable head.
- the marking shoulder 16 is now located clearly inside the latch 2 , which is pushed forwards (in the locking position), and therefore cannot be seen and also can no longer be touched. The user can recognise this as confirmation that the device is now assembled in an operationally safe manner.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
Provided in a quick coupling system for fastening an interchangeable head to a pressing tool is a securing arrangement. The pressing tool has a press ram, which is movable in an axial direction, for actuating a pressing device in the interchangeable head. The quick coupling system has no thread and has either a bayonet closure or a securing arrangement having radially displaceable securing elements.
Description
The invention relates to a quick coupling system for fastening an interchangeable head on a press tool according to Patent claim 1.
Press devices are used for various purposes, including pressing cable connectors onto electric cables for example. As, owing to the multiplicity of possible diameters for electric cables, there is also a requirement for a multiplicity of cable connectors fitting the same, the press device to be used for the pressing of the cable connectors must also be equipped or be able to be equipped with a press head which is suitable for the various sizes of cable connector to be used. If exchangeable press heads are used, then these are simply designated in a simplified manner as exchangeable heads in the following. Thus, if required, one can quickly and easily convert to other cable-connector sizes using the same press device and with various exchangeable heads. Furthermore, with an exchangeable-head system one can also easily convert to other tool or adapter systems, such as for example to cable-cutting or stamping tools.
The longitudinal forces, that is to say the pressing forces generated by the press devices, to be transmitted are however a particular problem with press devices with exchangeable heads, because the coupling mechanism, using which the exchangeable head is fastened on the press device, must of course withstand these forces and the corresponding safety requirements are relatively high. Usually, the problem of fastening the exchangeable heads on press devices is therefore solved with screw connections. Screw connections have the advantage, in particular if many threads are engaged, that the very high longitudinal forces can be caught securely and that in many cases, the risk of an unintentional loosening in the pressure-loaded state is virtually non-existent. Namely, it appears extremely unlikely that the screw connection used loosens by several threads at once due to vibrations without it being noticed. For reasons of safety technology, the screw connection is currently therefore the customary technical solution for fastening exchangeable heads on press devices.
An example of such a solution with a screw-on exchangeable head is disclosed in EP-1 084 798. The publication shows a hydraulic manual press device with a relatively long screw-on threaded part for fastening the exchangeable head on the manual press device.
The high operational safety in the case of EP-1 084 798 comes at the cost of relatively cumbersome and time-consuming exchangeability, however. Doubtless, in modern work environments it is a disadvantage if the exchanging of an exchangeable head takes up a lot of time, in particular if it must take place frequently. Because safety aspects rightly always are and have been highly regarded, one also barely has/had a reason to deviate from this proven connection concept in the case of press devices with exchangeable heads. Although quick coupling systems are also exceptionally desirable in the case of press devices, this is of course only if safety is ensured to the same degree.
It is therefore the object of the present invention to specify a quick coupling system for fastening an exchangeable head on a press tool which ensures quicker exchangeability whilst maintaining high operational safety.
This object is achieved by means of the features of Patent claim 1.
The solution originates from the consideration that the presence of a thread is not necessarily the only possibility for producing the connection between the press tool and exchangeable head, in order to ensure a satisfactorily high connection security. Other systems, which for example use a bayonet closure or a securing-means arrangement with radially displaceable securing means, can offer the same degree of connection security. Of course, this is very dependent in the individual case on how the securing-means arrangement is configured and dimensioned, particularly in the case of the last-mentioned solution variant. The main advantage however consists in the fact that dispensing with a thread for producing the connection between the press tool and exchangeable head essentially allows the realisation of a real quick coupling system for the first time.
Primarily, though not exclusively, the present invention is concerned with solutions in which radially displaceable securing means are used. Therefore, the securing measures to be provided for this case are also assigned a high importance.
Fundamentally, it is to be assumed that in the case of systems with radially displaceable securing means, there is a multiplicity of possible individual technical solutions. All of these individual solutions are based on the basic principle however, that only one clear multiplication of the radially displaceable securing means to be provided offers the required operational safety, especially in the case of high pressures. At the same time, this of course also means that all possibilities for incorrect assembly which could possibly result undesirably and unintentionally for design reasons must be prevented. Incorrect assembly is understood in the following as an assembled state in which not all radially displaceable securing means present successfully reach engagement. Defective designs could lead to this nonetheless being possible. Defective assemblies would of course not be satisfactory in terms of safety technology and are therefore to be avoided. This can fundamentally be achieved using design measures or with notices on the device. With regards to the latter, it is of course to be noted that provision is generally to be made for using design measures to completely prevent incorrect assembly and the possibility of commissioning with incorrect assembly, as simply displaying an incorrect assembly may not receive satisfactory attention in the case of a hurried working method and then lead to accidents in spite of this.
Nevertheless, it of course makes sense, even in the case of a press tool which cannot be incorrectly assembled at all, to have a notification which makes the user aware that everything is correctly assembled and that safety is also ensured. Indication devices of this type are very simple to realise and probably even have a trust-building action which is not to be underestimated.
The multiplication of the radially displaceable securing means which are present to increase the operational safety preferably includes the securing means being present at least twice and being arranged axially one behind the other. In this case, the term securing means it is to be understood to mean that it can for example comprise an individual radially displaceable ball element in each case or else also a group (distributed over a circumference) of radially displaceable ball elements. The exemplary embodiments described below are concerned with solutions in which two groups of radially displaceable ball elements are present in each case, which are arranged axially one behind the other and each distributed over a circumference. The forces to be captured are therefore distributed to at least two securing means or always to a multiplicity of ball elements. Particularly with such solutions it must however be considered, as mentioned above, that a mechanically secure coupling between the press tool and the exchangeable head in a non-operationally-safe position, in which only one group of radially displaceable ball elements is engaged, is not at all possible. That is the case for both exemplary embodiments shown.
Both exemplary embodiments are of such a type that no mechanically secure coupling or latching at all can be produced between the press tool and the exchangeable head in a non-operationally-safe assembly position. As pressing pressure build-up additionally takes place only relatively slowly by means of a press piston in press tools of this type, the exchangeable head itself would simply be pressed out of the holding part on the press device if inadvertently commissioned, and there is no danger whatsoever for the operating personnel.
The exchangeable head of a quick coupling system of this type can therefore be shaped particularly simply in terms of design. Namely, it only requires two retaining grooves arranged axially one behind the other on the shank part of the exchangeable head, which can be inserted into a holding part of the press tool, which at the same time has the advantage of being simple to produce. The retaining grooves can advantageously extend over the entire circumference, if appropriate however also only over parts of the circumference of the shank part. They can, if required, of course also be realised simply as fittingly arranged individual recesses.
Quick coupling systems of this type can of course be used not just on electrically, pneumatically, mechanically or hydraulically operated press devices; they are just as suitable for manually operated press devices or for press devices with flexible connections to the movable press piston.
As mentioned at the beginning, other quick coupling systems which comprise securing-means arrangements in the form of a bayonet closure system are likewise possible. Bayonet closure systems include a latching device which can be actuated by means of rotation. Although the capturing of relatively large forces tends to be easier in the case of bayonet closures, it must also here possibly be ensured using suitable means, that an unintentional and incomplete latching of the bayonet closure does not lead to safety problems.
The term “securing-means arrangement” is to be understood broadly in this context. Irrespective of whether an exchangeable head is fastened on a press tool by means of a thread, a bayonet closure or with the aid of radially displaceable securing means, they are to be understood to mean those means which should ensure secure fastening. In the case of screw connections and to a large extent also in the case of bayonet closures, this takes place in the main by means of the type of connection per se. In solutions with radially displaceable securing means, further components are of course added, such as for example the latch 2 and the spring 9.
Two exemplary embodiments of the invention with radially displaceable securing means which fulfil the requirements previously explained in general terms are explained in more detail in the following on the basis of drawings. In the figures,
In this case, a shank part 13 of an exchangeable head 1 is inserted completely into a securing-means holding part 3 on a press tool 4 and latched therein. A latch 2, which is axially displaceable on the securing-means holding part 3 and is pushed forwards (that is to say away from the press tool) by a spring (not illustrated), is used for latching.
A securing-means arrangement includes securing means S1, S2 in the form of ball elements which are arranged in a radially displaceable manner in ball channels 5, 6 in the securing-means holding part 3.
The securing means S1, S2 are here constructed as two groups of radially displaceable ball elements (in each case distributed over a circumference). The two groups use ball elements of different diameter.
As can be seen from FIG. 1 , the securing-means holding part 3 has stepped internal radii, namely an (outer) region with a larger internal radius in the region of the ball channels 5, and an (inner) region with a smaller internal radius in the region of the ball channels 6.
If the latch 2 is in the latching position shown, then the securing means S1, S2 are pressed into corresponding retaining grooves 14, 15 in the shank part 13 of the exchangeable head 1 and thus effect the secure and reliable latching or locking of the exchangeable head. Incorrect assembly is not possible owing to the different sizes of the ball elements, as an attempt to assemble in a position in which only the securing means S1 are in engagement does not result in a secure connection between the press tool and exchangeable head.
If the latch 2 is in the release position (not illustrated), the securing means S1, S2 can switch to the retaining grooves 7, 8 and the exchangeable head 1 can be pulled out of the securing-means holding part 3.
During operation, a hydraulically, pneumatically, mechanically or electrically actuated press piston 10 of the press device 4 acts with a press force P on a spring mounted push rod 12 in the interior of the exchangeable head 1. In this case, the push rod is used for actuating a press apparatus in the exchangeable head.
Here also, a shank part 13 of an exchangeable head 1 is inserted completely into a securing-means holding part 3 on a press tool 4 and latched therein. A latch 2, which is axially displaceable on the securing-means holding part 3 and is pushed forwards (that is to say away from the press tool) by a spring 9, is used for latching.
A securing-means arrangement includes securing means S1, S2 in the form of ball elements which are arranged in a radially displaceable manner in ball channels 5, 6 in the securing-means holding part 3.
The securing means S1, S2 are here also constructed as two groups of radially displaceable ball elements (in each case distributed over a circumference). The two groups use ball elements of the same diameter in this case, however.
As can be seen from FIG. 2 , the securing-means holding part 3 does not have any stepped internal radii here, however, but rather a constant internal radius in the entire holding region.
If the latch 2 is in the latching position shown, then the securing means S1, S2 are pressed into corresponding retaining grooves 14, 15 in the shank part 13 of the exchangeable head 1 and thus effect the secure and reliable latching or locking of the exchangeable head. Incorrect assembly is not possible in spite of their same size of the ball elements and in spite of the same internal radius of the securing-means holding part, as an attempt to assemble in a position in which only the securing means S1 are in engagement does not result in a secure connection between the press tool and exchangeable head, because the latch 2 in this position cannot be pushed into the latching position illustrated at all. The part of the shank part 13 projecting into the securing-means holding part 3 is namely dimensioned or elongated in such a manner that the securing means S2 do not switch and thus also cannot release the latch for displacement.
If the latch 2 is in the release position (not illustrated), the securing means S1, S2 can switch to the retaining grooves 7, 8 and the exchangeable head 1 can be pulled out of the securing-means holding part 3.
In contrast with the first exemplary embodiment and for simplification, the means for transmitting the pressing force are not illustrated here. Here also, during operation, a hydraulically, pneumatically, mechanically or electrically actuated press piston (not illustrated) of the press device 4 acts with a press force P on a spring mounted push rod (not illustrated) in the interior of the exchangeable head 1, which for its part is used for actuating a press apparatus in the exchangeable head.
Both exemplary embodiments therefore show solutions in which the securing-means arrangement has radially displaceable securing means S1, S2, wherein the securing means S1, S2 for increasing the securing effect are present at least twice and arranged axially behind one another, specifically so that the securing-means arrangement makes a mechanically secure coupling between the press tool 4 and the exchangeable head 1 impossible in a non-operationally-safe position. Thus, with the multiplication or at least doubling and axial connection one behind the other of the securing means S1, S2, the required operational safety and at the same time of course the primarily intended quick coupling possibility between press tool and exchangeable head can be achieved.
Of course, further design solutions for securing-means arrangements with radially displaceable securing means are possible. Thus, it is for example possible that the securing means are not spherical, but rather shaped in a bolt- or cam-like manner, and it is also possible that the securing means are present more than twice.
The FIGS. 3 and 4 finally show another realisation option for visually indicating correct and safe assembly of the device, that is to say of the press tool 4 and exchangeable head 1.
Of course, in addition to the, in design terms, particularly simple solution shown, there are further realisation options for the indication device. Thus for example, a red warning marking applied on the shank part 13 instead of the marking shoulder could become invisible in the case of correct assembly, or a green indication field appearing in a window could be provided for further clarification.
- 1 Exchangeable head
- 2 Latch
- 3 Securing-means holding part
- 4 Press tool
- 5 Ball channel
- 6 Ball channel
- 7 Accommodation groove
- 8 Accommodation groove
- 9 Spring
- 10 Press piston
- 11 (not used)
- 12 Push rod
- 13 Shank part
- 14 Retaining groove
- 15 Retaining groove
- 16 Marking shoulder
- S1 Securing means
- S2 Securing means
- P Pressing force
Claims (3)
1. A device having an unthreaded quick coupling system for fastening an exchangeable head to a press tool, the device comprising:
an exchangeable head having a shank portion; the shank portion having a marking shoulder formed on an exterior surface;
a press tool having a holding portion for at least two radially-displaceable securing elements and a press piston, the press piston moveable in an axial direction to actuate a press apparatus in the exchangeable head;
at least two radially-displaceable securing elements axially arranged one behind the other on the holding portion of the press tool, the securing elements making a mechanically-secure coupling between the exchangeable head and the press tool impossible in a non-operationally-safe position; and
a latch axially-displaceable on the holding portion of the press tool;
wherein, when the shank portion of the exchangeable head is completely inserted into the holding portion of the press tool, the marking shoulder is positioned within the latch and no longer visible indicating that coupling between the exchangeable head and the press tool is secure.
2. The device according to claim 1 , wherein the exchangeable head further comprises at least two retaining grooves axially arranged one behind the other on the shank portion, the retaining grooves configured for holding the radially-displaceable securing elements.
3. The device according to claim 1 , wherein the exchangeable head further comprises a colored warning marking for visually indicating correct and operationally-safe fastening of the exchangeable head to the press tool.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01006/11 | 2011-06-16 | ||
CH1007/11 | 2011-06-16 | ||
CH1006/11 | 2011-06-16 | ||
CH01007/11 | 2011-06-16 | ||
CH01007/11A CH705122A1 (en) | 2011-06-16 | 2011-06-16 | Quick coupling for connecting a replaceable head. |
CH01006/11A CH705121A1 (en) | 2011-06-16 | 2011-06-16 | Quick coupling for connecting a replaceable head. |
PCT/EP2012/058767 WO2012171732A1 (en) | 2011-06-16 | 2012-05-11 | Quick coupling system for fastening an interchangeable head to a pressing tool |
Publications (2)
Publication Number | Publication Date |
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US20140239599A1 US20140239599A1 (en) | 2014-08-28 |
US9573335B2 true US9573335B2 (en) | 2017-02-21 |
Family
ID=46062282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/343,705 Active 2033-04-23 US9573335B2 (en) | 2011-06-16 | 2012-05-11 | Quick coupling system for fastening an interchangeable head on a press tool |
Country Status (5)
Country | Link |
---|---|
US (1) | US9573335B2 (en) |
EP (1) | EP2750873B1 (en) |
CA (1) | CA2850582A1 (en) |
IN (1) | IN2014MN00419A (en) |
WO (1) | WO2012171732A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019217816A1 (en) | 2018-11-29 | 2020-06-04 | Ridge Tool Company | TOOL HEADS FOR SHEARING |
US11034002B2 (en) | 2018-03-23 | 2021-06-15 | Milwaukee Electric Tool Corporation | Attachment mechanism for a power tool |
US20220176538A1 (en) * | 2020-12-09 | 2022-06-09 | Dubuis et Cie. SAS | Device having a quick coupling system for fastening an exchangeable head |
US11548082B2 (en) | 2020-11-27 | 2023-01-10 | Milwaukee Electric Tool Corporation | Powered threaded rod cutter |
US11548081B2 (en) | 2018-02-14 | 2023-01-10 | Milwaukee Electric Tool Corporation | Powered threaded rod cutter |
US11685032B2 (en) | 2020-07-02 | 2023-06-27 | Milwaukee Electric Tool Corporation | Rotary impact tool having bit holding device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH705121A1 (en) | 2011-06-16 | 2012-12-31 | Arx Ag | Quick coupling for connecting a replaceable head. |
CH705122A1 (en) | 2011-06-16 | 2012-12-31 | Arx Ag | Quick coupling for connecting a replaceable head. |
US9573263B2 (en) | 2012-04-18 | 2017-02-21 | Ridge Tool Company | Work tools having interchangeable work heads |
CA2957053C (en) * | 2014-08-06 | 2023-09-19 | Stryker Corporation | Powered surgical handpiece with a chuck that facilitates alignment of the cutting accessory fitted to the tool |
Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1054126A (en) * | 1912-05-20 | 1913-02-25 | Ivar F Lindberg | Drill-chuck. |
US2255333A (en) * | 1938-10-08 | 1941-09-09 | Albert T Scheiwer | Coupling |
CH266696A (en) * | 1947-11-19 | 1950-02-15 | Vogel Arnold | Device for fixing a tool in a mandrel. |
DE813789C (en) * | 1948-10-02 | 1951-09-17 | Jakob Wollenhaupt | Chuck for drills, milling tools, etc. like |
US3103367A (en) * | 1962-08-28 | 1963-09-10 | William H Peck | Piercing tool and retainer therefor |
US3583715A (en) | 1967-09-15 | 1971-06-08 | Eric Jahrl | Quick change chuck |
DE2426760A1 (en) | 1973-06-04 | 1975-01-02 | Eminentverktyg Ab | INSERT BUSHING WITH QUICK CHANGE CARTRIDGE FOR TOOLS IN MACHINE TOOLS |
FR2649028A1 (en) | 1989-06-28 | 1991-01-04 | Snecma | Device for automatically holding a tool holder or tool |
JPH0342199A (en) | 1989-07-06 | 1991-02-22 | Toshiba Mach Co Ltd | Device for clamping stamp and mortar |
US5490683A (en) * | 1994-07-27 | 1996-02-13 | Mednext Inc. | Tool shaft coupler |
US5893851A (en) * | 1997-04-18 | 1999-04-13 | Midas Rex Pneumatic Tools, Inc. | Multiple chuck resecting tool |
US5911421A (en) * | 1997-04-18 | 1999-06-15 | Kennametal Inc. | Sealed collet having improved radial flexibility for facilitating removal from a locknut |
US5934846A (en) * | 1998-06-30 | 1999-08-10 | Ishii; Masato | Chuck |
US5996452A (en) * | 1998-10-13 | 1999-12-07 | Chiang; Shu Chi | Chuck device for power tool |
DE20012706U1 (en) | 2000-07-21 | 2000-09-28 | Lorenz Gmbh Maschf | Interchangeable part for workpiece clamping device and workpiece clamping device adapted to it |
EP1084798A2 (en) | 1999-09-15 | 2001-03-21 | Gustav Klauke GmbH | Hydraulic press tool |
US6324768B1 (en) | 2000-04-18 | 2001-12-04 | Aip, Inc. | Ball lock punch retainer and checking gage system |
DE10046869A1 (en) | 2000-09-20 | 2002-04-18 | Henkel Kgaa | Tablet forming punch for shaping adhesive particulate mixtures incorporates a press surface consisting of a base area and a surrounding edge area which is releasably attached to the punch |
US6511268B1 (en) | 1999-08-13 | 2003-01-28 | Maxtech Manufacturing Inc. | Tool device with reversible drill bit/screw bit |
US6722667B2 (en) * | 2000-06-09 | 2004-04-20 | Jore Corporation | Workpiece connector for a power tool |
US20040161313A1 (en) | 2003-02-18 | 2004-08-19 | Nordlin William F. | Universal quick change hole saw arbor |
US20090160138A1 (en) * | 2007-02-01 | 2009-06-25 | Ulrich Bohne | Tool holder for a machine tool, in particular for a hand-held power tool |
US7565854B2 (en) * | 2007-10-31 | 2009-07-28 | Hsin Ying Enterprise Co., Ltd. | Tool retaining device for power tool |
DE202009010128U1 (en) | 2009-07-24 | 2009-10-08 | Josef Weischer Gmbh | punching device |
US20090290931A1 (en) * | 2007-08-31 | 2009-11-26 | Strategic Ideas, Llc | Fastener and Assembly Utilizing the Same |
US7740249B1 (en) * | 2006-05-01 | 2010-06-22 | Bradshaw Medical, Inc. | Holder for replaceable tools |
US7766585B2 (en) * | 2001-02-09 | 2010-08-03 | Team Fair Holdings Limited | Irregular-shank tools and drivers therefor |
US20120319398A1 (en) * | 2011-06-16 | 2012-12-20 | Von Arx Ag | Quick-connect coupling |
US9242422B2 (en) * | 2011-06-16 | 2016-01-26 | Von Arx Ag | Quick-connect coupling |
-
2012
- 2012-05-11 WO PCT/EP2012/058767 patent/WO2012171732A1/en active Application Filing
- 2012-05-11 IN IN419MUN2014 patent/IN2014MN00419A/en unknown
- 2012-05-11 US US14/343,705 patent/US9573335B2/en active Active
- 2012-05-11 CA CA2850582A patent/CA2850582A1/en not_active Abandoned
- 2012-05-11 EP EP12720497.2A patent/EP2750873B1/en active Active
Patent Citations (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1054126A (en) * | 1912-05-20 | 1913-02-25 | Ivar F Lindberg | Drill-chuck. |
US2255333A (en) * | 1938-10-08 | 1941-09-09 | Albert T Scheiwer | Coupling |
CH266696A (en) * | 1947-11-19 | 1950-02-15 | Vogel Arnold | Device for fixing a tool in a mandrel. |
DE813789C (en) * | 1948-10-02 | 1951-09-17 | Jakob Wollenhaupt | Chuck for drills, milling tools, etc. like |
US3103367A (en) * | 1962-08-28 | 1963-09-10 | William H Peck | Piercing tool and retainer therefor |
US3583715A (en) | 1967-09-15 | 1971-06-08 | Eric Jahrl | Quick change chuck |
DE2426760A1 (en) | 1973-06-04 | 1975-01-02 | Eminentverktyg Ab | INSERT BUSHING WITH QUICK CHANGE CARTRIDGE FOR TOOLS IN MACHINE TOOLS |
US3947047A (en) | 1973-06-04 | 1976-03-30 | Aktiebolaget Eminentverktyg | Quick-change collet |
FR2649028A1 (en) | 1989-06-28 | 1991-01-04 | Snecma | Device for automatically holding a tool holder or tool |
JPH0342199A (en) | 1989-07-06 | 1991-02-22 | Toshiba Mach Co Ltd | Device for clamping stamp and mortar |
US5490683A (en) * | 1994-07-27 | 1996-02-13 | Mednext Inc. | Tool shaft coupler |
US5893851A (en) * | 1997-04-18 | 1999-04-13 | Midas Rex Pneumatic Tools, Inc. | Multiple chuck resecting tool |
US5911421A (en) * | 1997-04-18 | 1999-06-15 | Kennametal Inc. | Sealed collet having improved radial flexibility for facilitating removal from a locknut |
US5934846A (en) * | 1998-06-30 | 1999-08-10 | Ishii; Masato | Chuck |
US5996452A (en) * | 1998-10-13 | 1999-12-07 | Chiang; Shu Chi | Chuck device for power tool |
US6520509B1 (en) | 1999-08-13 | 2003-02-18 | Maxtech Manufacturing Inc. | Screw guide device with drill bit/screw bit and counter sink/drill stop means |
US6511268B1 (en) | 1999-08-13 | 2003-01-28 | Maxtech Manufacturing Inc. | Tool device with reversible drill bit/screw bit |
EP1084798A2 (en) | 1999-09-15 | 2001-03-21 | Gustav Klauke GmbH | Hydraulic press tool |
US6718870B1 (en) | 1999-09-15 | 2004-04-13 | Gustav Klauke Gmbh | Hand-held hydraulic pressing apparatus |
US6324768B1 (en) | 2000-04-18 | 2001-12-04 | Aip, Inc. | Ball lock punch retainer and checking gage system |
US6722667B2 (en) * | 2000-06-09 | 2004-04-20 | Jore Corporation | Workpiece connector for a power tool |
US20020017753A1 (en) | 2000-07-21 | 2002-02-14 | Rolf Adrian | Interchangeable part for workpiece fixture and workpiece fixture adapted thereto |
US6461089B2 (en) | 2000-07-21 | 2002-10-08 | Liebherr-Verzahntechnik Gmbh | Interchangeable part for workpiece fixture |
DE20012706U1 (en) | 2000-07-21 | 2000-09-28 | Lorenz Gmbh Maschf | Interchangeable part for workpiece clamping device and workpiece clamping device adapted to it |
DE10046869A1 (en) | 2000-09-20 | 2002-04-18 | Henkel Kgaa | Tablet forming punch for shaping adhesive particulate mixtures incorporates a press surface consisting of a base area and a surrounding edge area which is releasably attached to the punch |
US7766585B2 (en) * | 2001-02-09 | 2010-08-03 | Team Fair Holdings Limited | Irregular-shank tools and drivers therefor |
US20040161313A1 (en) | 2003-02-18 | 2004-08-19 | Nordlin William F. | Universal quick change hole saw arbor |
US7740249B1 (en) * | 2006-05-01 | 2010-06-22 | Bradshaw Medical, Inc. | Holder for replaceable tools |
US20090160138A1 (en) * | 2007-02-01 | 2009-06-25 | Ulrich Bohne | Tool holder for a machine tool, in particular for a hand-held power tool |
US20090290931A1 (en) * | 2007-08-31 | 2009-11-26 | Strategic Ideas, Llc | Fastener and Assembly Utilizing the Same |
US7565854B2 (en) * | 2007-10-31 | 2009-07-28 | Hsin Ying Enterprise Co., Ltd. | Tool retaining device for power tool |
DE202009010128U1 (en) | 2009-07-24 | 2009-10-08 | Josef Weischer Gmbh | punching device |
US20120319398A1 (en) * | 2011-06-16 | 2012-12-20 | Von Arx Ag | Quick-connect coupling |
US9242422B2 (en) * | 2011-06-16 | 2016-01-26 | Von Arx Ag | Quick-connect coupling |
Non-Patent Citations (3)
Title |
---|
International Preliminary Report on Patentability dated Dec. 17, 2013 for PCT/EP2012/58767. |
International Search Report dated Sep. 25, 2012 for PCT/EP2012/58767. |
Written Opinion for PCT/EP2012/58767. |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11548081B2 (en) | 2018-02-14 | 2023-01-10 | Milwaukee Electric Tool Corporation | Powered threaded rod cutter |
US11034002B2 (en) | 2018-03-23 | 2021-06-15 | Milwaukee Electric Tool Corporation | Attachment mechanism for a power tool |
US11504830B2 (en) | 2018-03-23 | 2022-11-22 | Milwaukee Electric Tool Corporation | Attachment mechanism for a power tool |
DE102019217816A1 (en) | 2018-11-29 | 2020-06-04 | Ridge Tool Company | TOOL HEADS FOR SHEARING |
US11685032B2 (en) | 2020-07-02 | 2023-06-27 | Milwaukee Electric Tool Corporation | Rotary impact tool having bit holding device |
US11548082B2 (en) | 2020-11-27 | 2023-01-10 | Milwaukee Electric Tool Corporation | Powered threaded rod cutter |
US20220176538A1 (en) * | 2020-12-09 | 2022-06-09 | Dubuis et Cie. SAS | Device having a quick coupling system for fastening an exchangeable head |
US11931875B2 (en) * | 2020-12-09 | 2024-03-19 | Dubois et Cie S.A.A | Device having a quick coupling system for fastening an exchangeable head |
Also Published As
Publication number | Publication date |
---|---|
EP2750873A1 (en) | 2014-07-09 |
US20140239599A1 (en) | 2014-08-28 |
IN2014MN00419A (en) | 2015-06-19 |
EP2750873B1 (en) | 2019-07-10 |
CA2850582A1 (en) | 2012-12-20 |
WO2012171732A1 (en) | 2012-12-20 |
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